Revert r213415, "Merge two lines". It broke tests in -Asserts builds.
Revert r213415, "Merge two lines". It broke tests in -Asserts builds.

CGBuilder doesn't name instructions with Name. We should use Inst::setName() to name an instruction explicitly here.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@213431 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang